Types for m_maximumAge and m_timeout in PositionOptions class should be changed

Source/modules/geolocation/PositionOptions.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 48 matching lines @@
     PositionOptions()
         : m_highAccuracy(false)
         , m_maximumAge(0)
         , m_timeout(std::numeric_limits<unsigned>::max())
 
     {
         setMaximumAge(0);
     }
 
     bool m_highAccuracy;
-    int m_maximumAge;
-    int m_timeout;
+    unsigned m_maximumAge;
+    unsigned m_timeout;
 };
 
 } // namespace WebCore
 
 #endif // PositionOptions_h